Service difficulty report · Warning Light · Boeing 737990ER

Difficulty date
December 20, 2015
Submitted
December 24, 2015
Operation
Air carrier
Aircraft
N431AS
Make and model
Boeing 737990ER
Aircraft serial
43255
Aircraft time
8,469 hours, 2,785 cycles
Part
Warning Light
Condition
Illuminated
Location
Lt A/C Pack
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

LEFT PACK LIGHT ILLUMINATED ON CLIMB AT FL240. ACCOMPLISHED QRH AND LIGHT EXTINGUISHED, CONTINUED CLIMB. PACK LIGHT ILLUMINATED AT FL 257. AGAIN, ACCOMPLISHED QRH AND SELECTED LT PACK OFF. LEFT RAM AIR LIGHT INDICATED FULL OPEN ON CLIMB. ACFT GROUNDED. ON DEFERRAL.